Southern California steelhead trout have been pushed to the brink of extinction as their river habitats have been altered by development and fragmented by barriers and dams.

A jury sided with a former State Parks employee who said the agency treated him unfairly in part due to his Mexican heritage, awarding him $2.3 million.

State officials unveiled 81 targets to transform millions of acres in the Golden State into landscapes that can absorb more carbon than they release by 2045.

McKinley Elementary has designs to modernize its campus. But plans are being delayed, and costs are rising since dangerous vapors were found in the soil.

Giant sun shades, 40-foot-tall air filters, stratospheric sulfur injections: Here are some of the wild and wondrous ways we might save the planet.

North America's 2021 fire season, including massive Northern California blazes, was made worse by a supercharged heat dome. What did the supercharging? Climate change.

California has released 500,000 salmon into the Klamath River. As dams are removed, the fish will be some of the first to return to a free-flowing river.

A flood of cheap Chinese electric car exports has raised the specter of another trade war with the U.S. And it has Tesla worried.

Disney had previously committed to ditching gasoline engines but left open hybrids as a possibility.

California has set a limit for the toxic heavy metal hexavalent chromium in drinking water. Advocates have called for a stricter limit, warning of health risks.

News that Midwestern dairy cows may have become infected with avian flu by eating poultry waste has many asking: What are American farm animals being fed? And should we be concerned?

California's water board has for the first time put a farming region on probation for failing to adopt measures to curb excessive pumping of groundwater.

The drive to electrify personal cars in California has, at best, hit a rough patch. The big question is whether current conditions will turn out to be growing pains.

Angel Alba, who worked at Malibu-area state parks, alleges his supervisors denigrated him for being Mexican and retaliated when he complained.

Newly discovered damage in Glen Canyon Dam would require releasing less water at low reservoir levels a a problem that increases water risks in the Southwest.

Los Angeles, Portland and other progressive cities are still powered by faraway coal plants. We went to Montana to find out why.

Current conditions are promising, but L.A. must maintain its ethos of conservation and prepare for an inevitable return to dry times ahead, LADWP officials say.

As the avian flu continues to threaten poultry farms and wildlife, are factory farms a sitting duck?

The women who started ChargerHelp are driven to succeed and to train a workforce of people who are often overlooked. They're also addressing a major issue with EV charging in California: reliability.

Officials have decided to ban salmon fishing on the California coast for a second year. Salmon populations have dropped after the state's last drought.

The pup could become Aquarium of the Pacific's first surrogate-raised otter to return to the wild a if she masters the skills needed to hack it in the ocean.

Environmental regulators have found explosive levels of methane in a popular Berkeley park. Regulators and the city are sparring over the source of the gas and what to do about it.

The Metropolitan Water District, which delivers imported water to Southern California, is raising rates and property taxes to cover rising costs.

The EPA has issued federal limits on dangerous "forever chemicals" in drinking water, which it says will save thousands of lives and prevent serious illnesses.

With an average surface temperature of 57.45 degrees, last month was warmer than any previous March on record, according to European climate officials.

Environmental and community groups want the state to turn down Phibro-Tech for a renewed permit for its Santa Fe Springs facility.

Environmental groups are urging water managers to scale back pumping until juvenile salmon and steelhead have finished migrating through the delta and into San Francisco Bay.

Assembly Bill 1963 would sundown the use of the herbicide paraquat, which has been linked to Parkinson's disease and other health issues, beginning in January 2026.

More than a third of the Navajo Nation lacks running water. As the tribe nears a pact with Arizona over water rights, a California nonprofit looks to help.

An abandoned train track could be transformed into a 307-mile hiking, cycling and horseback pathway through California's remote North Coast, along the Eel River and towns such as Fortuna.